My dd aged 4 is doing well in her reading and writing in Reception in the UK and is getting increasingly interested in trying to read German (our home language). I have not encouraged her in this because the sounds are different(easier!) and I read on a thread a few years ago that it is better to let a child become fluent in one language first. Apparently they then automatically adjust to reading another language. Is this correct or could she do both without confusing herself?